EP 0434244 A3 19920102 - IMPROVED CATALYTIC METHOD FOR THE REDUCTIVE AMINATION OF POLY(OXYTETRAMETHYLENE) GLYCOLS
Title (en)
IMPROVED CATALYTIC METHOD FOR THE REDUCTIVE AMINATION OF POLY(OXYTETRAMETHYLENE) GLYCOLS
Publication
Application
Priority
US 45214689 A 19891218
Abstract (en)
[origin: CA2027396A1] IMPROVED CATALYTIC METHOD FOR THE REDUCTIVE AMINATION OF POLY(OXYTETRAMETHYLENE) GLYCOLS (Docket No. 80,884-F) Poly(oxytetramethylene) diamines useful in the preparation of polyamide and polyurea elastomers are prepared by the catalytic reductive amination of a poly(oxytetramethylene) glycol feedstock under reductive amination conditions in the presence of ammonia and hydrogen using a hydrogenation/dehydrogenation catalyst composed of, on an oxide-free basis, about 70 to 75 wt.% of nickel, about 20 to about 25 wt.% of copper, about 0.5 to 5 wt.% of chromium and about 1 to 5 wt.% of molybdenum.
[origin: CA2027396A1] Poly(oxytetramethylene) diamines useful in the prepara- tion of polyamide and polyurea elastomers are prepared by the catalytic reductive amination of a poly(oxytetramethyl- ene) glycol feedstock under reductive amination conditions in the presence of ammonia and hydrogen using a hydrogena- tion/dehydrogenation catalyst composed of, on an oxide-free basis, about 70 to 75 wt.% of nickel, about 20 to about 25 wt.% of copper, about 0.5 to 5 wt.% of chromium and about 1 to 5 wt.% of molybdenum.
IPC 1-7
IPC 8 full level
B01J 23/88 (2006.01); C07B 61/00 (2006.01); C07C 213/02 (2006.01); C07C 217/42 (2006.01); C08G 65/325 (2006.01)
CPC (source: EP US)
C07C 213/02 (2013.01 - EP US); C08G 65/3255 (2013.01 - EP US)
Citation (search report)
- [YD] US 3151115 A 19640929 - MOSS PHILIP H, et al
- [YD] US 3436359 A 19690401 - HUBIN ALLEN J, et al
- [A] US 3390184 A 19680625 - MOSS PHILIP H, et al
- [A] US 3151112 A 19640929 - MOSS PHILIP H
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
US 5003107 A 19910326; CA 2027396 A1 19910619; CA 2027396 C 20020924; DE 69016970 D1 19950323; DE 69016970 T2 19950622; EP 0434244 A2 19910626; EP 0434244 A3 19920102; EP 0434244 B1 19950215; JP 2902126 B2 19990607; JP H049359 A 19920114
DOCDB simple family (application)
US 45214689 A 19891218; CA 2027396 A 19901011; DE 69016970 T 19901129; EP 90312995 A 19901129; JP 41063090 A 19901214